It’s a common question, here’s the answer…
For the most part, poor oral hygiene is to blame. It starts with bacteria that builds up on your tongue and between your teeth and then breeds. These bacteria are the sources of the odor.
Bad breath could also be caused by a medical condition such as gum disease, cavities, oral cancer, or dry mouth (xerostomia).
Brushing and flossing regularly (along with these tips) will help most people. However, some people will need products specifically designed to eliminate bad breath.
Fortunately, there is a company named TheraBreath that makes such products, and you can buy them online.